usb3 umass device on usb2 port not recognised

[Hans Petter Selasky]

On Thursday 04 October 2012 10:33:44 Guido van Rooij wrote:
> ct  4 10:31:23 beck kernel: uhub_reattach_port: Port 3 is in Host Mode
> Oct  4 10:31:24 beck kernel: uhub_read_port_status: port 3,
> wPortStatus=0x0500, wPortChange=0x0001,

Hi,

There is a high speed port detection, but it somehow fails. wPortChange=0x0001

In:
sys/dev/usb/controller/ehci.c

Lookup this and you find the reset sequence which is failing.

                case UHF_PORT_RESET:
                        DPRINTFN(6, "reset port %d\n", index);

Suggestions:

a) Do the reset sequence twice.
b) Reduce the USB reset delays.

                        /* Wait for reset to complete. */
                        usb_pause_mtx(&sc->sc_bus.bus_mtx,
                            USB_MS_TO_TICKS(USB_PORT_ROOT_RESET_DELAY));
--HPS